High-Performance General-Purpose Polyurethane Topcoat - China Suppliers & Factory提供的优质涂料
Product Features
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Excellent weather resistance, strong UV resistance, no yellowing, no loss of gloss, and no powdering even after long-term exposure to sunlight.
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With high color and gloss retention, the paint film boasts high gloss and stable color, making it suitable for light-colored or white systems that are prone to fading, ensuring it remains as good as new for many years.
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Excellent mechanical properties, including wear resistance, flexibility, and impact resistance, allowing for adaptation to structural deformation or minor vibrations.
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Chemical resistance, water resistance, oil resistance, resistance to weak acids and alkalis, and resistance to certain solvents are superior to acrylic and alkyd paints.
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It has strong decorative appeal, with a smooth and plump surface, and can be mixed to create various bright and high-saturation colors (such as RAL and NCS standard colors).
Recommended Use
- ⚓ Naval architecture and marine engineering: superstructure, bridge, exterior walls of living quarters (requiring long-term aesthetics and corrosion resistance).
- 🌉 Bridges and steel structures: landmark buildings such as cross-sea bridges, high-speed railway stations, and sports venues.
- 🏭 Petrochemical facilities: outer walls of storage tanks, pipelines, and platforms (requiring both weather resistance and chemical resistance).
- 💨 Wind power equipment: wind turbine tower, nacelle shell (exposed to wind, sand, and ultraviolet radiation for extended periods).
- 🚆 Transportation: high-speed railway carriages, construction machinery, airport equipment.
- 🏢 Building curtain wall and metal roofing: projects with high requirements for color durability.
Product Parameters
| Project | Data | |||
|---|---|---|---|---|
| Density (Kg/L) | 1.3 | |||
| Color | Various Colours | |||
| Solid percentage by volume % | 63 ± 2 | |||
| Reference dry film thickness (μm) | 30 | |||
| Theoretical coating rate (㎡/L) | 21 | |||
| Flash point | 30°C [86°F] | |||
| Volatile matter (g/L) | 323 | |||
| Gloss | Highlights | |||
| Drying time | 10℃ | 20℃ | 30℃ | |
| Dry to touch | 3 hrs | 2 hrs | 1 hr | |
| Actual drying | 16 hrs | 14 hrs | 8 hrs | |
| Coating interval | 10℃ | 20℃ | 30℃ | |
| min | 18 hrs | 16 hrs | 10 hrs | |
| Potlife | 10℃ | 20℃ | 30℃ | |
| 10 hrs | 8 hrs | 6 hrs | ||
| Mixing ratio | Main agent : Curing agent (5:1 volume ratio) | |||
| Storage period | 24 months at 25°C | |||
Application
Construction Method
Airless spraying
Nozzle pressure: 14 MPa – 21 MPa
Nozzle hole diameter: 0.6 mm – 0.8 mm
Surface Treatment & Construction Conditions
Remove dust, sand and loose materials.
The relative humidity during construction and curing processes must be less than 85%.
To avoid condensation, please apply on a clean and dry surface with a temperature at least 3°C [5°F] above the dew point.
Disclaimer
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The information provided in this manual is the most comprehensive and correct information we have at present. Since the conditions of product use are beyond our control, the information here does not contain any guarantee, that is, we are only responsible to the buyer for the product selection. Due to the continuous development of our company's products and production processes, all information here is subject to our confirmation.
Frequently Asked Questions (FAQ)
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Q1 What makes this topcoat suitable for long-term outdoor exposure?This topcoat is formulated with excellent weather resistance and strong UV resistance. It does not yellow, lose gloss, or powder even after prolonged sunlight exposure, making it ideal for outdoor applications in harsh environmental conditions.
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Q2 What is the recommended application method and equipment setting?The recommended application method is airless spraying. The nozzle pressure should be set between 14 MPa and 21 MPa, and the nozzle hole diameter should be between 0.6 mm and 0.8 mm for optimal results.
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Q3 What are the mixing ratio and pot life of this product?The mixing ratio is 5:1 by volume (main agent to curing agent). The pot life varies by temperature: 10 hours at 10°C, 8 hours at 20°C, and 6 hours at 30°C. It is important to use the mixed product within the specified pot life.
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Q4 What surface preparation is required before application?Before application, remove all dust, sand, and loose materials from the surface. Ensure the surface is clean and dry, and that the surface temperature is at least 3°C [5°F] above the dew point to avoid condensation. The relative humidity must be below 85% during both application and curing.
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Q5 Is this topcoat available in custom colors, and does it support standard color systems?Yes, this topcoat can be mixed to create a wide range of bright, high-saturation colors. It supports standard color systems including RAL and NCS, making it suitable for projects with precise color specifications or aesthetic requirements.
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Q6 How long can this product be stored, and what are the storage conditions?The product has a storage period of 24 months when stored at 25°C. It should be kept in a cool, dry place away from direct sunlight and extreme temperatures. Always check the product condition before use if it has been stored for an extended period.